body {
    background: #fff;
    overflow: hidden;
}
.header {
    position: fixed;
    top: 0;
    height: 50px;
    button {
        border: none;
        width: 30px;
        height: 50px;
    }
    h1 {
        line-height: 50px;
    }
}
.footer {
    position: fixed;
    display: flex;
    bottom: 0px;
    height: 60px;
    background: rgba(70,184,218,0.8);
    justify-content: space-around;
    z-index: 100;
    button {
        width: 40%;
        height: 50px;
        color: white;
        border: none;
        border-radius: 10px;
    }
}
.main {
    position: fixed;
    top: 50px;
    bottom: 0;
    overflow: auto; 
    .main1 {
        background-color: #46b8da;
        img {
            zoom: 1;
        }
    }
    .main2 {
        color: #fbb435;
        padding: 10px 10%;
    }
    .main3 {
        padding: 10px 10%;
    }
    .event {
        padding: 10px 10%;
        border-bottom: 1px #ddd solid;
        font-size: 16px;
    }
}